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cupoosta [38]
3 years ago
7

How many social security numbers are available if the only restriction is that the number 000-00-0000 cannot be assigned?

Mathematics
1 answer:
harkovskaia [24]3 years ago
3 0
Each digit can be 0-9 ( 10 numbers)
 there are 9 numbers in a social security number

multiply 10 nine times:
10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 =  1,000,000,000 ( 1 billion) possibilities.
 
 the restriction is it can't be all zeros so subtract 1 from the total
 1,000,000,000 - 1 = 999,999,999 combinations



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